Author Topic: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?  (Read 437 times)

passionate4nature

  • Member
  • ***
  • Posts: 10
    • East Bay, CA
    • View Profile
Hi,
Which Avocado varieties are truly Dwarf, Smaller, or can be planted high density against the fence (suppose upright trees / not spreading) ???

I have a back corner full of fruit trees. Fence is on 6-7' away, apple branches are close, wanted to put them against the fence.  Based on Online Data all Avocados are 25-30', but this does not seem like real world data unless the tree is 20 years old with prime conditions. The weather here (SF Bay Area) probably won't allow 30'. 

I know you can prune for smaller size.

Wurtz/ little cado is but not preferred. Some say Reed has a Upright weeping pattern instead of spreading. How About Gem, Carmen, Lamb (mine seems spreading). My Haas is spreading. 




Epicatt2

  • Hero Member
  • *****
  • Posts: 794
  • Fruit forest in progress . . .
    • Tampa, FL / Zone 9b
    • View Profile
Re: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?
« Reply #1 on: September 09, 2023, 05:30:42 PM »
How about 'MEXICOLA' (not 'Mexicola Grande') which grows to about 15ft tall?

My 'Mexicola Grande' is about 18ft tall after four years and is supposed to grow up to 25ft.  I do prune it back to about 8ft, but then it jumps back up to 14ft or higher fairly quickly.  It seems more upright than spreading.

A 'Mexicola' with a mature hight of 15ft might be a better sized tree for you unless you are wanting something that stays really really short.  (My 'Mexicola' (not 'Grande') also looks to be going to be more upright than spreading.)

And BTW both of these two are very cold tolerant, and are part of the Mexican race of avocados.

Paul M.
==
« Last Edit: September 09, 2023, 05:34:43 PM by Epicatt2 »

pagnr

  • Hero Member
  • *****
  • Posts: 938
    • View Profile
Re: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?
« Reply #2 on: September 09, 2023, 06:17:55 PM »
Dwarf Avocados usually have shorter internodes, ie spaces between the buds. This causes dwarfing as the foliage is more compact.
Some varieties are smaller growing trees, but not dwarfing as above.
There are a few of these varieties.
Rootstock may also be another factor.
Not sure it has been researched, but a dwarf on a less vigorous rootstock variety may be more compact than the same on a very vigorous rootstock.
Gem Linda and Wurtz are compact types.

drymifolia

  • Sr. Member
  • ****
  • Posts: 459
    • Seattle 9a/sunset zone 5
    • View Profile
    • the drymifolia collective
Re: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?
« Reply #3 on: September 09, 2023, 09:20:24 PM »
How about 'MEXICOLA' (not 'Mexicola Grande') which grows to about 15ft tall?

I have seen a 30 ft Mexicola tree that was only ~20 years old. I don't think any avocado cultivars will really stop growing at a much smaller size than that, though some may grow more upright, wide, fast, or slow.

While some avocados have tighter internodes than others, there are no true dwarf avocados, and there are no dwarfing rootstocks. There are rootstocks of varying vigor, though, so using a low vigor rootstock can make it easier to successfully prune them small. The recommended practice for high density planting is aggressive pruning, girdling, and in Chile at least they use chemical methods (plant growth inhibitors). Here's a publication about the practice from UC:

https://ucanr.edu/sites/Rolshausen/files/248917.pdf

johnb51

  • Hero Member
  • *****
  • Posts: 4738
    • USA Deerfield Beach, FL Zone 11a
    • View Profile
Re: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?
« Reply #4 on: September 10, 2023, 08:32:14 AM »
Gwen?  (If it likes your climate.)  I know we have CA avocado people.  I hope they weigh in.
« Last Edit: September 10, 2023, 08:39:32 AM by johnb51 »
John

JR561

  • Member
  • ***
  • Posts: 181
    • Boynton Beach, Florida 33437 10b
    • View Profile
Re: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?
« Reply #5 on: September 10, 2023, 12:02:12 PM »
I have Wurtz, Maria Black, and Day.

So far all are staying compact.

johnb51

  • Hero Member
  • *****
  • Posts: 4738
    • USA Deerfield Beach, FL Zone 11a
    • View Profile
Re: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?
« Reply #6 on: September 10, 2023, 05:00:45 PM »
I have Wurtz, Maria Black, and Day.

So far all are staying compact.
But I don't think they're for NorthCal.
John

Avofan

  • Member
  • ***
  • Posts: 28
    • Oakland
    • View Profile
Re: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?
« Reply #7 on: September 11, 2023, 11:53:07 PM »
As others said there are not really true dwarf avocados
So dwarf just means slow growing, more or less, like Holiday
Slow growing means less fruit because avocados trees will drop fruit they canít support. One deciding factor is the mass of the tree
In the SF Bay Area they donít grow that fast so I think you could just prune them every year. Thatís my current thinking

Trees that are intended to be compact, high density - Lamb, Gem
Gwen is slow growing, I think itís considered compact for that reasonÖ which is the same for Holiday and Wurtz I think
Reed, Bacon, Mexicola are considered columnar - small footprint, grow up like bamboo
Hass and Fuerte are considered large trees.

This is just what Iíve read. My trees are only like 6 feet tall. I have GEM, Lamb, Mexicola, Nabal, Holiday, Zutano, Reed, Puebla, Fuerte, Hass, Pinkerton in the ground

ScottR

  • Hero Member
  • *****
  • Posts: 2175
    • USA,Arroyo Grande,Calif. 93420,zone 9b
    • View Profile
Re: Avocado Varieties : Dwarf / Smaller Footprint / High Density Planting ?
« Reply #8 on: September 12, 2023, 12:22:52 PM »
I keep a Holiday and Hellen at about  8' tall but you need to prune often some varieties like Reed would be hard to keep small like Fuerte too. But I have a 25 yr old Fuerte avocado that I keep at 8' tall but has spread sideways by 16-18'. If your willing to stay on your trees and prune or tip constantly then you can do it but it's work.

 

SMF spam blocked by CleanTalk